Control Rods Made of Cadmium or Boron Moderate the Fission

question 67

Multiple Choice

Control rods made of cadmium or boron moderate the fission reactions in nuclear power plants.Which of the following best describes how control rods function?

• A)Control rods absorb the high heat that is produced from the fission reactions,preventing overheating from occurring.
• B)Control rods absorb some of the fast moving neutrons that are produced in the fission reactions,preventing their initiation of other fission reactions.
• C)Control rods absorb the steam produced when the water is heated to a high temperature,preventing the generation of electricity.
• D)Control rods absorb gamma rays that are responsible for initiating a chain reaction.
• E)Control rods act as a catalyst for the reverse of the fission reaction,preventing the fission reaction from continuing.

Understand the basic principles of the market system and its advantages such as efficiency and economic freedom.

Identify the roles of households and businesses within the circular flow model.

Recognize the inherent problems and inefficiencies of centrally planned economies, including the incentive and coordination problems.

Grasp the concept of the "invisible hand" and its implications for promoting societal interests through individual self-interest.

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Definitions:

Projects

Specific, planned activities with defined goals and objectives, undertaken to achieve a desired outcome.

CCA Class

Stands for Capital Cost Allowance Class, a categorization in tax systems for depreciation of assets for tax purposes.

Pre-tax Cost Reduction

A reduction in expenses that occurs before taxes have been applied, aimed at improving a company's profitability.

Tax Bracket

A range of income amounts that are taxed at a particular rate. Tax brackets result in higher income being taxed at higher rates.